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Gilead to buy Arcellx (ACLX) for $115 per share plus $5 CVR milestone

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Arcellx, Inc. stockholder Rami Elghandour filed an amended Schedule 13D reporting beneficial ownership of 3,938,771 shares of common stock, representing 6.4% of the class, including shares underlying options and certain family trusts.

The filing discloses that Arcellx entered into a Merger Agreement with Gilead Sciences, Inc. and a Gilead subsidiary. Gilead’s subsidiary will launch a tender offer to acquire all outstanding Arcellx shares for $115.00 in cash per share plus one contingent value right (CVR) providing a potential additional $5.00 in cash upon achievement of a specified milestone. Shares accepted in the offer and shares converted in the subsequent merger will receive the same package.

Options with exercise prices below the cash amount will be cashed out for the in-the-money value plus one CVR per underlying share, while out-of-the-money options will be canceled. Restricted stock units will be converted into cash based on the $115.00 amount plus one CVR per underlying share. Elghandour and other key holders entered into tender and support agreements committing to tender their shares and, if needed, vote in favor of the merger, subject to limited exceptions.

Positive

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Insights

Gilead agrees to acquire Arcellx with cash plus milestone-based CVR, supported by major holder Elghandour.

The amendment shows Rami Elghandour beneficially owns 3,938,771 Arcellx shares, or 6.4%, including options and trust-held shares. This stake matters because Arcellx signed a Merger Agreement under which a Gilead subsidiary will buy all outstanding shares via tender offer and follow-on merger.

Each share will receive $115.00 in cash plus a contractual contingent value right for a potential further $5.00, contingent on a specified milestone under a CVR agreement. Equity awards are treated economically: in-the-money options receive cash for intrinsic value plus CVRs, out-of-the-money options are canceled, and RSUs convert into cash at the cash price plus CVRs per underlying share.

Elghandour and other support stockholders signed tender and support agreements on February 22, 2026, agreeing to tender their shares and, where applicable, vote for the merger, subject to stated exceptions. Subsequent company communications and filings around the offer period of at least 20 business days from commencement will clarify timing and any further conditions as they are fulfilled.






If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Row 7, 9 and 11: Consists of (i) 365,967 shares of common stock held directly by the Reporting Person, (ii) 2,346,202 shares of common stock issuable pursuant to options held directly by the Reporting Person exercisable within 60 days of February 22, 2026, and (iii) 810,102 shares of common stock issuable pursuant to options held by a grantor-retained annuity trust of the Reporting Person exercisable within 60 days of February 22, 2026. (2) Row 8, 10 and 11: Consists of (i) 218,500 shares of common stock held by a spousal lifetime access non-grantor trust of which the Reporting Person is a beneficiary and for which the Reporting Person may be deemed to continue to have beneficial ownership, and (iii) 198,000 shares of common stock held by a spousal lifetime access non-grantor trust of which the Reporting Person's spouse is the beneficiary and for which the Reporting Person may be deemed to continue to have beneficial ownership. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest therein, if any, and this Schedule shall not be deemed an admission that the Reporting Person is the beneficial owner of such shares for any other purpose. (3) Row 13: Based on the quotient obtained by dividing (a) the aggregate number of shares of common stock beneficially owned by the Reporting Person by (b) the sum of (i) 58,464,222 shares of common stock outstanding as of February 19, 2026, based on information provided to the Reporting Person by the Issuer, (ii) 2,346,202 shares of common stock issuable pursuant to options held directly by the Reporting Person exercisable within 60 days of February 22, 2026, and (iii) 810,102 shares of common stock issuable pursuant to options held by a grantor-retained annuity trust of the Reporting Person exercisable within 60 days of February 22, 2026. The aggregate number of shares of common stock beneficially owned by the Reporting Person as set forth in "(ii)" and "(iii)" of this footnote are treated as outstanding shares of common stock only for the purpose of computing the percentage ownership of the Reporting Person.


SCHEDULE 13D


Rami Elghandour
Signature:/s/ Rami Elghandour
Name/Title:Rami Elghandour
Date:02/24/2026

FAQ

What percentage of Arcellx (ACLX) does Rami Elghandour report owning?

Rami Elghandour reports beneficial ownership of 3,938,771 Arcellx shares, representing 6.4% of the common stock. This figure includes directly held shares, options exercisable within 60 days of February 22, 2026, and shares held through specified family trusts.

What are the key financial terms of Gilead’s acquisition of Arcellx (ACLX)?

The agreement provides $115.00 in cash per Arcellx share plus one contingent value right (CVR). Each CVR may pay an additional $5.00 in cash upon achieving a specified milestone, giving shareholders a cash payment and potential future upside.

How will Arcellx (ACLX) stock options be treated in the Gilead merger?

In-the-money Arcellx options will be canceled and converted into a cash payment equal to their intrinsic value based on the $115.00 price, plus one CVR per underlying share. Options with exercise prices at or above $115.00 will be canceled without additional consideration.

What happens to Arcellx (ACLX) restricted stock units in the transaction?

Each Arcellx restricted stock unit will be canceled and converted into a lump-sum cash payment equal to $115.00 per underlying share plus one CVR per share. Performance-based RSUs will use actual performance determinations made in connection with the merger.

What commitments did Rami Elghandour make regarding the Arcellx (ACLX) merger?

Elghandour signed a tender and support agreement with Gilead’s entities. He agreed to tender all covered shares into the offer and, if required, vote them in favor of the merger, subject to limited exceptions such as valid termination of the Merger Agreement.

How long will the tender offer for Arcellx (ACLX) shares remain open?

The tender offer by Gilead’s subsidiary for all issued and outstanding Arcellx shares will initially remain open for a minimum of 20 business days from its commencement. The offer period may be extended in accordance with the terms of the Merger Agreement.
ARCELLX INC

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Biotechnology
Biological Products, (no Diagnostic Substances)
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United States
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